CN106877853A - Optical switch keyboard - Google Patents
Optical switch keyboard Download PDFInfo
- Publication number
- CN106877853A CN106877853A CN201610284388.1A CN201610284388A CN106877853A CN 106877853 A CN106877853 A CN 106877853A CN 201610284388 A CN201610284388 A CN 201610284388A CN 106877853 A CN106877853 A CN 106877853A
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- China
- Prior art keywords
- circuit board
- light
- optical
- button
- trigger member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 145
- 238000000605 extraction Methods 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 13
- 235000014676 Phragmites communis Nutrition 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000001727 in vivo Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/9627—Optical touch switches
- H03K17/9629—Optical touch switches using a plurality of detectors, e.g. keyboard
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
- H03K17/943—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector using a plurality of optical emitters or detectors, e.g. keyboard
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/03—Sound
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
Abstract
The invention provides an optical switch keyboard, which comprises a circuit board assembly and a plurality of keys arranged on the circuit board assembly. The circuit board assembly comprises a circuit board, a plurality of light-emitting elements and a plurality of light receivers, wherein each key is arranged on the upper surface of the circuit board, and each light-emitting element and each light receiver correspond to one key and are arranged on the lower surface of the circuit board, so that the interference of ambient light from the upper part of the circuit board and the permeation of liquid are avoided. The optical switch keyboard of the invention arranges the light-emitting element and the light receiver below the circuit board, and the light-emitting element and the light receiver can avoid the interference of dust, liquid or light from the upper part so as to maintain high-precision signal detection. And, set up waterproof construction through the department at the activity gap on the casing of button to avoid liquid infiltration circuit board, in order to maintain good detection space.
Description
Technical field
The present invention is on a kind of keyboard, particularly a kind of keyboard for assembling optical profile type switch.
Background technology
Keyboard uses the indispensable equipment of computer for modern.There are many buttons above keyboard, for user's pressing
With input instruction.Conventional keyboard has the button design of a variety of generation push button signallings.Such as mechanical key design is used and led
Electric pin triggers circuit is switched and produces button trigger signal, and optical profile type button design is then by the reception of light or blocking
Change and produce button trigger signal.
The structure of existing optical profile type switch 9 is, as shown in figure 1, button portion 84 is arranged at the top of circuit board 83, for one
User presses.It is responsible for producing a light extraction device 81 of Continuity signal to be oppositely arranged with a receiver 82, and positioned at button portion 84
Between circuit board 83.Consequently, it is possible to when user pushes button, button portion 84 must stretch out a shading arm 84a to block out
Light path warp between light device 81 and receiver 82, makes receiver 82 to receive the light from light extraction device 81, and optical profile type is opened
Close 9 and now accordingly produce a trigger signal.It is clear from the figure that existing optical profile type switch 9, its light extraction device 81, receiver
82 and button portion 84 be all arranged at phase the same side of circuit board 83, i.e. button portion 84, light extraction device 81 and receiver 82 all sets
It is placed in the top of circuit board 83.But, due to there are gap between each button portion 84 and button portion 84, if therefore being set according to above-mentioned
Put, gap of the dust/liquid easily between button portion 84 and button portion 84 float into/penetrate into and stay in the top of circuit board 83,
Severe jamming receiver 82 cannot critically be received the light from light extraction device 81 and then produce signal erroneous judgement by this, and influence is accurate
Degree.Therefore, existing optical profile type switch stills need to improve.
The content of the invention
It is a primary object of the present invention to provide a kind of optical profile type switchboards, it is arranged on circuit board by by button
Side, and produce Continuity signal go out optical element and optical receiver is arranged at circuit board lower section to avoid optical receiver from being subject to foreign matter
And the interference of ambient light, and improve the judgement sensitivity and the degree of accuracy of optical profile type button.
Of the invention one preferably implements concept, is to provide a kind of optical profile type switchboards, including：
One circuit board assembly, including：
One circuit board；
Multiple goes out optical element, is arranged at a lower surface of the circuit board, and each this goes out optical element and outwards launch light；And
Multiple optical receivers, are arranged at the lower surface of the circuit board, and each optical receiver corresponds to the light extraction
Element is set, and go out a light that optical element launched from this and produce a Continuity signal to receive；And
Multiple buttons, are arranged at a upper surface of the circuit board, and each button correspond to one this go out optical element and
One optical receiver, each button includes：
One keycap；
One housing, is arranged at keycap lower section；And
One trigger member, connects the keycap and penetrates the enclosure interior；
Wherein, when the trigger member is located at a first position, the optical receiver receives the light for going out optical element from this,
When the trigger member is located at a second place, the optical receiver does not receive the light for going out optical element from this, the wherein circuit
Plate accordingly produces a switching signal according to the change of the Continuity signal.
In a preferred embodiment, the circuit board assembly also includes multiple radiation sources, and multiple radiation sources are set
In the upper surface of the circuit board and the circuit board is electrically connected at, each radiation source corresponds to the button, so that should
Radiation source irradiates towards the keycap.
In a preferred embodiment, the optical profile type switchboards also includes a keyboard base, and the keyboard base is arranged at this
The lower section of circuit board assembly, the keyboard base includes multiple shading walls, and each shading wall extends up towards the circuit board assembly
And an accommodation space is defined, with accommodating two-phase corresponding, this goes out optical element and the optical receiver and covers ambient light.
In a preferred embodiment, the circuit board has multiple through holes, each button be correspondingly arranged in one this run through
Hole top, the trigger member has a smooth stopper, and when the trigger member is moved down, the light stopper passes the through hole and is located at the light extraction
On one travel path of the light that element is launched.
In a preferred embodiment, when the trigger member is located at the first position, this goes out the light that optical element is launched
The optical receiver is exposed to, when the trigger member is located at the second place, the light stopper passes the through hole and is located at the light extraction
On the travel path for the light that element is launched, this is gone out the light that optical element launched and is blocked by the light stopper and block
And do not expose to the optical receiver.
In a preferred embodiment, the optical profile type switchboards also includes multiple flashings, and each flashing is arranged at
Between one housing and the keycap, and the flashing is arranged at a top surface of the housing, wherein, the top surface has on one to be worn
Hole, the flashing have a perforate, and on this perforation correspond to the perforate, wherein, the trigger member be arranged in the housing this on
Perforation and the perforate of the flashing, and it is connected to the keycap.
In a preferred embodiment, the optical profile type switchboards also includes multiple waterproof rings, and each waterproof ring is arranged at
Between one housing and the circuit board, and the waterproof ring is arranged at a bottom surface of the housing, wherein, the bottom surface has wears
Hole, each waterproof ring has an opening, and each opening corresponds to the one of the bottom surface lower perforation and the circuit board
One through hole, each waterproof ring seals the shell with making the waterproof ring ring side clamped by the housing and the circuit board
Space between body and the circuit board, wherein, the trigger member be arranged in the lower perforation of the housing, the waterproof ring the opening with
And the through hole of the circuit board.
In a preferred embodiment, each button has a locating dowel, and the circuit board has multiple first location holes, its
In, each button is correspondingly arranged in first location hole top, and a locating dowel for the button inserts the circuit board phase
First location hole answered is to fix.
In a preferred embodiment, the optical profile type switchboards also includes a location-plate, and the location-plate has multiple second
Location hole, and each button correspondence be arranged among the 1 of the location-plate second location hole.
In a preferred embodiment, each button also includes a flexible member, and a first end of the flexible member is supported
The trigger member is peaked at, a second end of the flexible member is resisted against the housing；Wherein, when the keycap is pressed, the triggering
Part is moved down positioned at the second place, and when the button is released, the trigger member returns back to the first position by the flexible member.
In a preferred embodiment, each button also includes a reed, is arranged in the housing, when the keycap is made by one
When user presses down on, the trigger member is pushed down and activates the reed and produce a feedback sound.
The present invention at least has the advantages that：
Optical profile type switchboards of the present invention is arranged at the lower section of circuit board, light extraction by will go out optical element and optical receiver
Element and optical receiver can avoid the interference of dust, liquid or the light for coming from above, to maintain high-precision signal to examine
Survey.Also, waterproof construction is set by the place in the movable gap on the housing of button, to avoid liquid from penetrating into circuit board, with
Maintain good detection space.
Brief description of the drawings
Fig. 1 is the partial cutaway schematic view of existing optical profile type switchboards of the invention.
Fig. 2 is the overlooking surface schematic diagram of optical profile type switchboards of the present invention.
Fig. 3 is the schematic perspective view of the single optical profile type switch of optical profile type switchboards of the present invention.
Fig. 4 is the exploded perspective view of the single optical profile type switch of optical profile type switchboards of the present invention.
Fig. 5 in first embodiment of the invention button be not pressed and trigger member be located at non-pressing position when section illustrate
Figure.
Fig. 6 in first embodiment of the invention button be pressed and trigger member be located at pressing position when generalized section.
Fig. 7 in second embodiment of the invention button be not pressed and trigger member be located at non-pressing position when section illustrate
Figure.
Fig. 8 in second embodiment of the invention button be pressed and trigger member be located at pressing position when generalized section.
【Symbol description】
The circuit board assembly of 1 optical profile type switchboards 2
20 circuit board 20a upper surfaces
20b lower surface 20c through holes
20d the first location hole 20e diverging lens
21 go out the optical receiver of optical element 22
The button of 25 radiation source 3
The housing of 31 keycap 32
Perforated on 321 upper shell 321a
322 lower house 322a locating dowels
Perforated under 322b 33 trigger member
The opposite end 33c light stoppers of 33a, 33b trigger member
The flexible member of 33d light open-work 34
34a first end 34b the second ends
The keyboard case of 35 reed 4
The shading wall of 5 keyboard base 53
The location hole of 6 location-plate 60 second
The perforate of 7 flashing 70
8 waterproof rings 80 are open
The receiver of 81 light extraction device 82
The button portion of 83 circuit board 84
The existing optical profile type of 84a shading arm 9 is switched
Specific embodiment
As shown in Fig. 2 Fig. 2 is the overlooking surface schematic diagram of optical profile type switchboards of the present invention.Optical profile type switchboards 1 of the present invention
Including a circuit board assembly 2, multiple keyboard case 4 of button 3 and, the spread configuration of multiple buttons 3 on circuit board assembly 2,
Switched with being together to form multiple optical profile types.The ring periphery of the coating circuit plate assembly 2 of keyboard case 4 and the multiple buttons 3 of encirclement, and
Constitute keyboard complexion.
For the sake of describing, following Fig. 3 and Fig. 4 especially only shows single optical profile type switch to explain, Fig. 3
It is the schematic perspective view that the single optical profile type of optical profile type switchboards of the present invention is switched, Fig. 4 is optical profile type switchboards of the present invention
Single optical profile type switch exploded perspective view.Button of the present invention 3 includes a keycap 31, a housing 32, a trigger member 33, a bullet
The property reed 35 of element 34 and.Keycap 31 is arranged at outermost end, for putting situation with the use of normally keyboard, keycap
31 are located at top, so that a user presses.Housing 32 is arranged at the lower section of keycap 31, i.e. housing 32 and is located at keycap 31 and electricity
Between road plate assembly 2.Wherein, housing 32 is removable is divided into a upper shell 321 and a lower house 322, is able to during in order to assembling
Accommodate and load trigger member 33, the reed 35 of flexible member 34 and.
Specifically, trigger member 33 is placed in housing 32, and the opposite end of trigger member 33 wherein one end 33a through upper
One upper shed 321a of housing 321 passes upper shell 321, and clip is connected to a bottom surface of keycap 31.Trigger member 33 it is relative
The wherein other end 33b at two ends is then supported by flexible member 34, wherein, a first end 34a of flexible member 34 is resisted against
Trigger member 33, a second end 34b of flexible member 34 is resisted against lower house 322.Thus set so that keycap 31 should in receiving
When pressing down on force of user, also stress is moved and flexible member 34 of extruding trigger member 33 towards circuit board assembly 2, makes bullet
Property element 34 stores flexible potential energy.Therefore, before keycap 31 is not pressed, keycap 31 and trigger member 33 are not pressed positioned at one
Position (as shown in Figure 5).When keycap 31 is pressed, keycap 31 and the stress of trigger member 33 are moved downward to a pressing position
(as shown in Figure 6).After the user discharges keycap 31, keycap 31 and trigger member 33 can discharge it by flexible member 34
Stored elastic potential energy and forced back towards the non-pressing position, the work presented when this is the compression of button 3 and during involution
It is dynamic.
Next circuit board assembly 2 is introduced.Please continue to refer to Fig. 4, circuit board assembly of the present invention 2 include a circuit board 20,
Multiple goes out optical element 21, multiple optical receivers 22 and multiple radiation sources 25.Button 3 is arranged at the top of circuit board 20, goes out
Optical element 21 and optical receiver 22 are arranged at the lower section of circuit board 20.It is preferred that button 3 is arranged at a upper table of circuit board 20
Face 20a, goes out optical element 21 and optical receiver 22 is arranged at a lower surface 20b of circuit board 20.Wherein, go out optical element 21 and
The signal of optical receiver 22 is connected to circuit board 20, and the function for going out optical element 21 and optical receiver 22 is that optical element 21 outside
Launch light and can be received by corresponding optical receiver 22, and then produce a Continuity signal.
Furthermore, for the reception state for using the light between optical element 21 and optical receiver 22 can be pressed in response to user
The action of keycap and change, therefore circuit board 20 is configured to have multiple through hole 20c, so that trigger member 33 can be from circuit board 20
Top is down through circuit board 20 and extend out to the lower section of circuit board 20, and the light that optical element 21 sends is gone out certainly to block.And in key
When cap 31 is pressed down on by user, and trigger member 33 is synchronous move down during, reed 35 activated and produces a feedback sound
Ring, thus with the synchronous auditory effect increased when pressing.
Specifically, as shown in figs.5 and 6, Fig. 5 in first embodiment of the invention button 3 be not pressed and trigger
Part 33 be located at non-pressing position when generalized section, Fig. 6 in first embodiment of the invention button 3 be pressed and trigger member 33
Generalized section during positioned at pressing position.In first embodiment of the invention, it is phase to go out optical element 21 and optical receiver 22
Mutually face, the mode of its conducting is that trigger member 33 has a smooth stopper 33c, and light stopper 33c is used as shutting out the light.Often
One button 3 is correspondingly arranged in pass through aperture 20c tops, to cause that light trap portion 33c is able to be set in alignment with pass through aperture 20c.By
This, when user's pressing keycap 31 moves down trigger member 33, light stopper 33c is to penetrate through hole 20c and stretch out circuit board 20
Lower section.As shown in figure 5, when keycap 31 is not yet pressed preceding and trigger member 33 and is located at a non-pressing position, because of trigger member 33 still
Be not displaced downwardly to the level height for being same as out optical element 21 and optical receiver 22, thus go out light that optical element 21 launched can be by light
Receiver 22 is received and then produces the Continuity signal.Furthermore, as shown in fig. 6, being pressed in keycap 31 and receiving trigger member 33
When power is moved downward to the pressing position, it is displaced downwardly to and goes out optical element 21 and optical receiver because light stopper 33c passes through hole 20c
22 identical level heights, and stretch out and be located at out on the travel path of the light that optical element 21 is sent, therefore go out the institute of optical element 21
The light of transmitting is to be blocked to block by light stopper 33c so that optical receiver 22 cannot receive light and the Continuity signal disappears.
The first embodiment of optical profile type switchboards of the present invention is, from the change having to nothing, and accordingly to produce one according to the Continuity signal
Switching signal.
But certainly, go out the set location of optical element and optical receiver be also not limited to it is above-mentioned, it is also possible to be changing into such as Fig. 7
And shown in Fig. 8, Fig. 7 in second embodiment of the invention button 3 ' be not pressed and trigger member 33 ' positioned at non-pressing position when
Generalized section, Fig. 8 in second embodiment of the invention button 3 ' be pressed and trigger member 33 ' positioned at pressing position when cut open
Face schematic diagram.Similar in appearance to first embodiment, in second embodiment of the invention, go out optical element 21 and the mutual face of optical receiver 22
It is right, and light stopper 33c ' is used to shut out the light.Structure different from first embodiment is, in second embodiment of the invention, light
Stopper 33c ' has a light open-work 33d.When keycap 31 is not yet pressed preceding and trigger member 33 ' positioned at a non-pressing position,
It is located at out on the travel path of the light that optical element 21 is sent because light stopper 33c passes through hole 20c and stretches out, therefore light extraction is first
The light that part 21 is launched is blocked by light stopper 33c ' and blocked so that optical receiver 22 cannot receive light and be led without generation
Messenger.When keycap 31 is pressed and the stress of trigger member 33 ' is moved downward to a pressing position, the light of light stopper 33c '
Open-work 33d is moved down therewith, by enabling light open-work 33d to be located at out on the travel path of the light that optical element 21 is launched, is used
The light that optical element 21 is launched can expose to optical receiver 22, and then produce a Continuity signal.Optical profile type switch of the present invention
The second embodiment of keyboard is, according to the change from scratch of the Continuity signal, and accordingly to produce a switching signal.
Specifically it is optical element 21 and optical receiver 22 to show mutual face such as Fig. 5 to Fig. 8 in this
It is right, make to inject optical receiver 22 from going out the light straight line that optical element 21 sent.And or, go out optical element and optical receiver
Can be changed to not face each other, it passes through a reflecting surface or plane of refraction (not shown), the light that will be sent from light extraction element
Change direct of travel and be oriented to optical receiver, this also belongs to feasible setting.
Please merge with reference to Fig. 3 to Fig. 8, certainly, optical profile type switchboards 1 of the present invention also includes a keyboard base 5, keyboard bottom
Seat 5 is arranged at the lower section of circuit board assembly 2, and keyboard base 5 includes multiple shading walls 53, and each shading wall 53 is up towards circuit board
Assembly 2 extends and defines an accommodation space, is gone out the optical receiver 22 of optical element 21 and one and is had with accommodating two-phase corresponding
Ambient light is shielded to avoid effect of ambient light interference.
Additionally, the mode that button of the present invention 3 is fixed on circuit board 20 is, as shown in figure 4, each lower house 322 has one
Locating dowel 322a, each circuit board 20 has multiple first location hole 20d, and each button 3 is correspondingly arranged in the first location hole 20d
On top, and the locating dowel 322a insertion circuit boards 20 of lower house 322 among corresponding first location hole 20d, to fix.Again
Person, optical profile type switchboards of the present invention also includes a location-plate 6, and location-plate 6 has multiple second location holes 60, the second location hole
60 size accords with the size of the housing 32 of each button 3, spacing as fixation so that the correspondence of housing 32 is arranged in wherein.
On the other hand, the multiple activity gap part of optical profile type switchboards of the present invention is provided with waterproof construction, in case outward
Thing is invaded.Specifically, optical profile type switchboards also includes multiple flashings 7, and each flashing 7 is arranged at a housing 32 and
Between keycap 31, and flashing 7 is arranged at a top surface of upper shell 321, and top surface has the 321a that perforated on.Similarly, waterproof
Piece 7 has a perforate 70, and upper perforation 321a corresponds to perforate 70 so that the upper end 33a of trigger member 33 is obtained through in upper casing
The upper perforation 321a of body 321 and the perforate 70 of flashing 7, and it is connected to keycap 31.
Furthermore, optical profile type switchboards also includes multiple waterproof rings 8, and each waterproof ring 8 is arranged at the shell of circuit board 20 and
Between body 32.Wherein, bottom surface has perforation 322b (such as Fig. 5 and Fig. 6), and each waterproof ring 8 has an opening 80, and each
Lower perforation 322b corresponds to the opening 80 of waterproof ring 8 and the pass through aperture 20c of circuit board 20, also, trigger member 33 wears down
The through hole 20c of the lower perforation 322b, the opening 80 of waterproof ring 8 and circuit board 20 of housing 322.Furthermore, waterproof ring 8 is arranged at
One bottom surface of housing 32, and each waterproof ring 8 is clamped by a housing 32 and circuit board 20 so that waterproof ring 8 can ring side ground
Space between seal casinghousing 32 and circuit board 20, thus reaching good waterproof effect.
In addition, as shown in figure 3, each button 3 is configured with a radiation source 25, radiation source 25 is set with its pin
It is placed in the upper surface 20a of circuit board 20.Because the material of trigger member 33 is for partly or entirely as made by light transmissive material, i.e. trigger member 33
Part or all of category transparent area.Thus set, the light emitted by radiation source 25 can pass the transparent area of trigger member 33
Irradiated towards keycap 31, to reach the illumination effect of optical profile type switchboards.
In sum, optical profile type switchboards of the present invention is arranged at circuit board by will go out optical element and optical receiver
Lower section, goes out optical element and optical receiver can avoid the interference of dust, liquid or light that comes from above, to maintain high accuracy
Signal detection.Also, waterproof construction is set by the place in the movable gap on the housing of button, to avoid liquid from penetrating into electricity
Road plate, to maintain good detection space.
Above-described embodiment is only illustrative principle of the invention and its effect, and explains technology spy of the invention
Levy, not for limitation protection category of the invention.Any those skilled in the art can be former without prejudice to technology of the invention
In the case of reason and spirit, unlabored can change or the arrangement of isotropism belongs to the scope that the present invention is advocated.Therefore,
Listed by the claim that the scope of the present invention should be as be described hereinafter.
Claims (11)
1. a kind of optical profile type switchboards, including：
One circuit board assembly, including：
One circuit board；
Multiple goes out optical element, is arranged at a lower surface of the circuit board, and each this goes out optical element and outwards launch light；And
Multiple optical receivers, are arranged at the lower surface of the circuit board, each optical receiver correspond to one this go out optical element
Set, go out a light that optical element launched from this and produce a Continuity signal to receive；And
Multiple buttons, are arranged at a upper surface of the circuit board, and each button correspond to one this go out optical element and should
Optical receiver, each button includes：
One keycap；
One housing, is arranged at keycap lower section；And
One trigger member, connects the keycap and penetrates the enclosure interior；
Wherein, when the trigger member is located at a first position, the optical receiver receives the light for going out optical element from this, when this
When trigger member is located at a second place, the optical receiver does not receive the light for going out optical element from this, wherein the circuit board according to
A switching signal is accordingly produced according to the change of the Continuity signal.
2. optical profile type switchboards as claimed in claim 1, the wherein circuit board assembly also include multiple radiation sources, multiple
The radiation source is arranged at the upper surface of the circuit board and is electrically connected at the circuit board, and each radiation source corresponds to
One button, so that the radiation source irradiates towards the keycap.
3. optical profile type switchboards as claimed in claim 1, also including a keyboard base, the keyboard base is arranged at the circuit
The lower section of plate assembly, the keyboard base includes multiple shading walls, and each shading wall extends and boundary up towards the circuit board assembly
An accommodation space is made, this goes out optical element and the optical receiver and covers ambient light with accommodating two-phase corresponding.
4. optical profile type switchboards as claimed in claim 1, the wherein circuit board have multiple through holes, each button pair
Through hole top should be arranged at, the trigger member has a smooth stopper, and when the trigger member is moved down, the light stopper passes this and passes through
Perforate and be located at this and go out on a travel path of the light that optical element is launched.
5. optical profile type switchboards as claimed in claim 4, wherein when the trigger member is located at the first position, light extraction unit
The light that part is launched exposes to the optical receiver, and when the trigger member is located at the second place, the light stopper passes this and passes through
Perforate and be located at this and go out on the travel path for the light that optical element is launched, this is gone out the light quilt that optical element is launched
The light stopper is blocked and blocks and do not expose to the optical receiver.
6. optical profile type switchboards as claimed in claim 4, also including multiple flashings, each flashing is arranged at one should
Between housing and the keycap, and the flashing is arranged at a top surface of the housing, wherein, the top surface has on one perforates, should
Flashing have a perforate, and on this perforation correspond to the perforate, wherein, the trigger member be arranged in the housing this on perforate with
And the perforate of the flashing, and it is connected to the keycap.
7. optical profile type switchboards as claimed in claim 4, also including multiple waterproof rings, each waterproof ring is arranged at one should
Between housing and the circuit board, and the waterproof ring is arranged at a bottom surface of the housing, wherein, the bottom surface has perforates, often
One waterproof ring have one opening, and each opening correspond to the bottom surface one this it is lower perforation and the circuit board one this pass through
Perforation, each waterproof ring seals the housing and is somebody's turn to do with making the waterproof ring ring side clamped by the housing and the circuit board
Space between circuit board, wherein, the trigger member is arranged in the lower perforation, the opening of the waterproof ring and electricity of the housing
The through hole of road plate.
8. optical profile type switchboards as claimed in claim 1, each of which button has a locating dowel, and the circuit board has
Multiple first location holes, wherein, each button is correspondingly arranged in first location hole top, and the button a positioning
Post inserts corresponding first location hole of the circuit board to fix.
9. optical profile type switchboards as claimed in claim 8, also including a location-plate, the location-plate has multiple second to position
Hole, and each button correspondence be arranged among the 1 of the location-plate second location hole.
10. optical profile type switchboards as claimed in claim 1, each of which button also includes a flexible member, the elasticity
One first end of element is resisted against the trigger member, and a second end of the flexible member is resisted against the housing；Wherein, when the key
When cap is pressed, the trigger member is moved down positioned at the second place, and when the button is released, the trigger member passes through the flexible member
Return back to the first position.
11. optical profile type switchboardses as claimed in claim 1, each of which button also includes a reed, is arranged at the shell
In vivo, when the keycap is pressed down on by a user, the trigger member is pushed down and activates the reed and produce a feedback sound.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562267067P | 2015-12-14 | 2015-12-14 | |
| US62/267,067 | 2015-12-14 | ||
| TW105112631 | 2016-04-22 | ||
| TW105112631A TWI616915B (en) | 2015-12-14 | 2016-04-22 | Keyboard equipped with optical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106877853A true CN106877853A (en) | 2017-06-20 |
Family
ID=59020776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610284388.1A Pending CN106877853A (en) | 2015-12-14 | 2016-04-29 | Optical switch keyboard |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20170169967A1 (en) |
| CN (1) | CN106877853A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256292A (en) * | 2017-07-12 | 2019-01-22 | 中兴通讯股份有限公司 | Mute key asembly and application have the mute key asembly by keyboard |
| CN109254239A (en) * | 2017-07-14 | 2019-01-22 | 致伸科技股份有限公司 | Keyboard pcb detection system |
| CN109617546A (en) * | 2019-01-18 | 2019-04-12 | 深圳市源隆光学科技有限公司 | Keyboard |
| WO2023103496A1 (en) * | 2021-09-09 | 2023-06-15 | 东莞市凯华电子有限公司 | Optical switch keyboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201737280A (en) * | 2016-04-08 | 2017-10-16 | 致伸科技股份有限公司 | Key structure |
| TWI647438B (en) * | 2017-07-14 | 2019-01-11 | 致伸科技股份有限公司 | Keyboard circuit board testing system |
| TWI699795B (en) * | 2019-01-28 | 2020-07-21 | 達方電子股份有限公司 | Keyswitch |
| CN110047677B (en) * | 2019-03-26 | 2021-06-08 | 苏州达方电子有限公司 | Optical switch key |
| TWI669738B (en) * | 2019-04-01 | 2019-08-21 | 達方電子股份有限公司 | keyboard |
| CN112038145A (en) * | 2019-06-03 | 2020-12-04 | 崔焺一 | Novel mechanical keyboard |
| CN113451065A (en) * | 2020-03-27 | 2021-09-28 | 致伸科技股份有限公司 | Key structure |
| US11557444B2 (en) * | 2020-06-04 | 2023-01-17 | Hewlett-Packard Development Company, L.P. | Keyboard key switches |
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| Publication number | Publication date |
|---|---|
| US20170169967A1 (en) | 2017-06-15 |
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Application publication date: 20170620 |